All BS set aside CMH yields

is it true or not

  • Total voters
    118
farmingfisherman

farmingfisherman

Well-Known Member
GrownAtHighAltitude said:
That looks like ballast included... I dunno about the light footprint with the angles in those reflectors... That is the one thing I think Sun System got really right with the lamp design.
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When I was shopping for a light I was told that tests showed the horizontal fixtures had been proven to provide better coverage than the previous vertical bulb hanging fixtures. I considered the vertical fixture because of the ballast outside of the tent mounting option but when used with leds the heat turns out to be a welcome addition.
 
T

Topshelfruns

Well-Known Member
farmingfisherman said:
Try this again. Yeah Sun System stuff isn't cheap nor is Gavita, nanolux ,hortilux and few other brands I trust. I figure the money I spend on quality grow equipment is worth the peace of mind knowing it's less likely to burn my home down which my love ones and I live in. Getting setup to grow properly costs real money, how much is up to the grower. Personally I figure the money I spend now is money I would have spent on buying weed and other weed related products in the future so why not go with the "one and done" approach. I was okay with buying a couple of knock off lower wattage China made LED's early on but I'm not going to take that risk with higher wattage HPS/MH/CMH lights. Not long ago I installed a new LED outdoor security light for my inlaws and first had to remove their old MH light. I took the MH apart afterwards which was a cheap china made light, the ballast on it was cooked, it had melted down to a gooey mess and smelled of a horrible electrical fire. Luckily the fixture was away from the house and incased in a metal fixture that contained the fire. Imagine that happening inside of a tent in your spare room or basement? No thanks..
P.S. The CMH fixture I bought has a dimmer which is fancy but worthless unless you are running it with a controller that it was designed for.



View attachment 4759525
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I love your setup a 315w cmh with 2 quantum board led's I bet you get great yields
 
T

Topshelfruns

Well-Known Member
farmingfisherman said:
Still puffing away on all the plants from that grow which was my first indoor so I was pretty happy with the results.
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May I ask how is the end quality's stone? Alot of people tell me your bud wont get you as stoned if you dont give them UVB but other people tell me that uva is all you need I'm wondering how your end quality was since you used only UVA and I'm glad that you are smoking for free :), I am currently spending 180-240 usd a week :(
 
farmingfisherman

farmingfisherman

Well-Known Member
Topshelfruns said:
May I ask how is the end quality's stone? Alot of people tell me your bud wont get you as stoned if you dont give them UVB but other people tell me that uva is all you need I'm wondering how your end quality was since you used only UVA and I'm glad that you are smoking for free :), I am currently spending 180-240 usd a week :(
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Each plant is different but they are all pretty good. Have three that lean more towards sativa and two that are more indica. All five plants are good and all are different. Definitely room for improvement but still very happy with my first attempt under lights.
 
GrownAtHighAltitude

GrownAtHighAltitude

Well-Known Member
Star Dog

Star Dog

Well-Known Member
farmingfisherman said:
When I was shopping for a light I was told that tests showed the horizontal fixtures had been proven to provide better coverage than the previous vertical bulb hanging fixtures.
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Anyone with a light meter will prove that to be wrong, I've tested vertical against horizontal and the vertical has superior spread and output.
The also run really cool to boot.
Screenshot_20201204-155240.png
You can see I've got a firm hold, not just a quick touch for a photo.
 
Rurumo

Rurumo

Well-Known Member
raratt said:
I'm running 120V also.
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me too, I had to get the 120 cord when I got my light from them, but the fixture works with both cords-just double check you're getting the 120 volt fixture to begin with. I'll be starting a new grow journal with this light soon. My cousin has a 630 dual bulb so I checked it out and really struggled with the decision to get a DE instead, but I'm glad I went with the DE. I want to test out the regular 3k bulb vs the 3k enhanced red bulb sometime too, I haven't found much info about them online.
 
Star Dog

Star Dog

Well-Known Member
I've got a 400v de ballast and parabolic reflector that never gets used, watt for watt it can't live with the vertical orientation output because it can get it much closer.
 
Drop That Sound

Drop That Sound

Well-Known Member
What would give a higher GPW:

The newer modern 315 digital ballasts and bulb

Or

The 360 watt CMH retrofit bulbs they were making that fit into any old magnetic 400 MH ballasts?

Also, why would you spend hundreds to upgrade to newer chincier crap that will burn out any day now when you can buy the CMH retrofit bulbs for $50 or so, and put them in your cheap reliable mag ballast that will run forever, with no radio interference noise or any other problems with the cheap digital components they now use.

Also, they made an 860 watt CMH bulb that fit into your 1000 MH ballast. How could you even top that without cobbling together multiple 315s and shelling out the dough?

Amazon.com : PHILIPS 901574 860W CDM All Start Growing Lamp : High Intensity Discharge Bulbs : Patio, Lawn & Garden

Amazon.com : PHILIPS 901574 860W CDM All Start Growing Lamp : High Intensity Discharge Bulbs : Patio, Lawn & Garden
www.amazon.com
 
Drop That Sound

Drop That Sound

Well-Known Member
Better yet, they make ceramic halide discharge bulbs in almost any size. They even have little baby 50-100 watt bulbs and ballasts. Why wouldnt you want to have a grid with multiple mini 70w bulbs, like 10 of them (700 total watts as opposed to a double ended 630) evenly spaced apart, and firing off of one ballast, for max coverage and even output instead of a single light source/bigger bulb.

A grid of 70w cmh bulbs over a highly trained scrog would hold the record quality/yeild for CMH grows i'm sure.
 
hillbill

hillbill

Well-Known Member
I use old 250w and 400w Philips Retrofit 4000k to supplement my COBs and Board. Just to bring in UVA and Infrared. Been doing this since March, like it.
Have 7 bulbs from 2013 with 0 hours.
 
Drop That Sound

Drop That Sound

Well-Known Member
hillbill said:
I use old 250w and 400w Philips Retrofit 4000k to supplement my COBs and Board. Just to bring in UVA and Infrared. Been doing this since March, like it.
Have 7 bulbs from 2013 with 0 hours.
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Looks hard to find those bulbs now. I got one stashed away. If you ask me the whole 315 sqaure wave digital ballast thing was just a gimmick to re design the wheel. They changed a few things electronically, that is just a re-engineered version of old tech to make for a new shiny marketable item that everyone must have, at A steep price.

Basically, i can get mag ballast a dime a dozen if not free, buy a $50 400watt retrofit bulb, and smoke your new 315 lol, just saying..
 
Drop That Sound

Drop That Sound

Well-Known Member
And they dont even produce the retrofit bulbs now because all you guys fell for the marketing ploy and shelled out millions for 315s
 
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